app/internet: initialize with landing page

This is already rolled out at https://internet.hackerspace.pl/.

Change-Id: Ibebaeb830a4b58cecfc1ecbf63d07cc63ded7e2b
diff --git a/app/internet/Dockerfile b/app/internet/Dockerfile
new file mode 100644
index 0000000..0fbe1ab
--- /dev/null
+++ b/app/internet/Dockerfile
@@ -0,0 +1,3 @@
+FROM nginx:1.17.1-alpine
+
+COPY static /usr/share/nginx/html